Drier



Patented Jail. 19, 1943 DRIER Folsom E. Drummond and William-A. Waldie, Dayton, Ohio, assignors to New Wrinkle, Inc., Dayton, Ohio, a corporation or Delaware No Drawing. Original application October 26,

1939, Serial No. 301,511. Divided and this application May 20, 1940, Serial No. 336,192

6 Claims. (Cl. 106-410) This invention relates to wrinkle finish compositlons, and more particularly to a vehicle for use in compounding wrinkling varnishes and enam els.

Heretofore in the manufacture of wrinkle finishes of the oil varnish type, they have invariably contained substantial quantities of China wood oil, oiticlca, or equivalent wrinkling drying oil. These oils have been utilized either in the blown or unblown or partially oxidized state with small additions of other drying oils such as linacetate, linseed oil and the remaining portion of the amberol are added to the batch and thor oughly stirred. After the resin and acetate have dissolved, the batch is allowed to cool to about 400 degrees F. and the thinner added. Y

Varnish B is made in like manner as varnish A. In place of a'mberol other phenol formaldehyde synthetic resins or similar oil-soluble resins may be used. To the above varnishes there is added a liquid drier. This drier has the following typical formula:

andthe Solid cobalt linoleate pounds l6to20 It is an object of this invention to produce a Wood on fatty acids 7 to 10 wrinkle finish composition wherein substantial T011101 291mm 010 amounts of the China wood oil are replaced with. The bove lmoleate and .wood on fatty acid dehydrated castor oil so as to produce a wrinkle drying composition which is comparable with China Wood 011 wrinkle finishes.

Another object is to compound'a wrinkle finish vehicle which may be compounded with pigment to provide a suitable wrinkle drying enamel.

Another object is to provide a wrinkling varnish composition wherein dehydrated castor oil ingredients are melted together and the toluol thoroughly incorporated to provide a liquid drier composition.

In formulating the wrinkle finish, about 3 to 5 per cent of the liquid'drier is incorporated with varnish A and varnish B. The final wrinkle finish composition is comprised as follows:

is substituted for a portion of the China wood Per centby volume oil so as to produce a. more rapid drying and v r i h A 5 0 harder wrinkle finish composition. i h n 50 This application is a division of my copending application Serial No. 301,511, filed October 26, 1939.

These and other objects will be apparent from the following description.

As a typical example of the formulation and procedure for utilizing this invention, the follo ing illustrative examples are given:

Varnish A ing castor oil at from 480 to 525 degrees F. for Amberol poflnds 100 about 2% hours. This produces a castor oil prod- Lead Meta, (in 5m 10 uct which is compatible with the conventional tung gallons 16 to 25 paint oil hydrocarbon solvents, and when incor- Linseed oil dn 1 m5 porated with oxidation accelerators, dries to a Thinner u as toluol or petrolemh I 40 toughfilm within a few hours. Suitable dehynaphtha or a mixture f the 25 t 35 drating agents may be added during treatment of the castor oil, such as alkali metal hydroxides, Varnish B sulphur, halogen compounds and the like.

90 As a modification the dehydrated castor oil 3: 2am I ai 5 m 10 may be prepared by heating the oil to efi'ect de- Raw tung on "gallons" 7 to 10 hydration and esteriiying the residue by adding Dehydrated castor on 7 to 10 glycerme. The 'esterified composition is con-. Linseed 1 to 3 aimed fi fi h gl l l i to 31 l i i i -oprouc we eayac gyceres 2 332 ftii ittifiifiiiiiflitfif- 25 to 35 a polyconjueted double a structural age. In manufacturing varnish A, the tung oil and By way of a specific example the castor oil about half the amberol are heatedin a kettle to approximately 500 to 550 degrees F. until the tune oil is about to conceal. Thereafter the lead The resultant product is applied to the surface to be coated by spraying or flowing and will airdry to a tough wrinkle film in 12 to 15 hours. Difierent proportionate blends of varnishes A and B can be made to vary the drying and film forming properties of the product.

The dehydrated castor oil ingredient utilized in making varnish B may be made by heat treatproduct may be. made as follows: 7

One hundred pounds or castor oil is heatedtoapproximately 500 degrees F. and destructively distilled until the residue comprises about 'IOper cent of the original mass. The residue is cooled to around 400 degrees F. and '75 pounds of glycerine added to esterify the mixture; The esterified product is maintained at about 400 degrees F. for a period of time sufficient to remove any water present, and then 112 pounds or phthalic anhydride is stirred into the mixture and the tempera- ,ture held at about 425 degrees F. until the reaction has taken place producing a clear homogeneous product. Thereafter the reaction product is cooled 'to 300 degrees F. and solvent thinner, such as toluol, addedin amount to produce an on product of the desired viscosity or body. It will of course be appreciated that other polyhydric alcohols may be substituted for glycerine and other polycarboxyllc acids used in place of phthalic anhydridm to modify the properties of the final product.

A portion of the vegetable drying oils utilized in compounding the varnishes may be mixed with the castor oil prior to destructively distilling. esterifying and condensing to vary the film drying and hardening properties of the final product.

By modifying the drier, a drying oil varnish may be made wherein all of the tung oil is replaced with dehydrated castor oil. The following is a typical formulation for this type of product:

Varnish C Amberol pounds 100 Lead acetate do 7 Dehydrated castor oil ga1lons 15 Linseed oil do Toluoldn 35 Varnislr is made by: combining the resin,iead acetate and oil together under heat by maintaining the mixture at about 550 degrees F. for sumcient time to provide an oleoresinous mixture of the desired viscosity. After the batch has cooled to approximately 350 degrees F. the toluol is.

added.

The liquid drier used Lin this instance comprises:

. Cobalt linoleate pounds 15 Wood oil fatty acids do 10 Benzoyl peroxide "do"-.. 1 Tnliinl gallons 10 Sufiicient amount of thisiliquid drier is incorporated with Varnish C to produce an air drying wrinkle finish. The varnish may be thinned with Different resins may be utilized in making the varnish compositions such as oil modified phenol aldehyde synthetic resins. alkyd resins, rosin, ester gum and fossil resins. Other wrinkling oils, such as oiticica and blown drying oils may be used in place of tung oil in compounding the varnishes herein. Perilla or equivalent drying oils may be substituted for linseed. If desired the drying oils are blown or in partially oxidized state.

The above compositions are adapted to air dry to a wrinkle finish but may be baked or dried at to degrees F. to produce a wrinkle finish. Use may be made of infra red radiation for instigating the wrinkling of the film.

It will be understood that the above formulations are merely exemplary of this invention and that various modifications and changes may be made without departing from the spirit of this invention.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent is:

1. A drier for incorporation in wrinkling drying oil coating compositions comprising a cobalt linoleate, tung oil fatty acids, benzoyl peroxide compound, and a solvent.

2. A liquid drier for incorporating in coating compositions'to enhance their drying to a wrinkle finish comprising a cobalt linoleate compound, drying oil fatty acids, benzoyl peroxide, and suflicient solvent thinner to provide a liquid composition.

3. A drier for incorporating in drying oil coating compositions to provide a substantially airdrying wrinkle finish coating when applied as a film, comprising by weight cobalt linoleate 15 parts, wood oil fatty acids 10 parts and having admixed therewith about 1 part by weight benzoyl peroxide, the resultant product being dissolved in a solvent to provide a liquid drier composition.-

4. A drier ingredient for incorporation in drying oil coating compositions to accelerate their drying to a wrinkle finish, comprising a homogeneous mixture of cobalt linoleate, drying oil fatty acids, benzoyl peroxide, and solvent in proportion to produce a liquid solution.

5. A liquid drier composition for incorporation in drying oil coating compositions to cause the coating to wrinkle comprising cobalt linoleate, tung oil fatty acids, benzoyl peroxide and toluol.

6. A drier for addition to drying oil coating compositions comprising dehydrated castor oil to cause the coating to dry to a wrinkle finish,

said drier consisting of a fatty acid cobalt compound, wood oil fatty acids, benzoyl peroxide and solvent thinner in proportions to provide a liquid composition.

FOLSOM E. DRUMMOND. WILLIAM A. WALDIE. 

